JPS63295378A - Race change method in fine spinning winder - Google Patents

Abstract

PURPOSE:To simplify the working upon race change and to aim at enhancing the operational efficiency by connecting a sliver on the different race yarn feed side to a sliver remaining on a draft pert before wind-up, and by removing a new race yarn wound on the old race yarn. CONSTITUTION:A solid bobbin 3 produced from a spinning machine 1 is fed to a winder 2 after it is subjected to pick-finding by a pick finder 8. In this phase, when a race change instruction is issued, the wind-up of the bobbin 3 on a spinning spindle 52 is once stopped, and a sliver Sa having a race A between a draft pert 51 and a can 50 is cut at the position X, and thus cut sliver SA1 is connected to a sliver B1 having a race B from a can 53. Then, the wind-up by the spindle 52 is initiated, and thus doffed solid bobbin 3 is selected out after it is subjected to pick-finding by a pick finder 8, and is introduced into a mixed yarn removing device in which the yarn having the new race B wound on the yarn having the race A is removed. Then the bobbin 3 is transferred to the winder 2, and subsequently, a solid bobbin 3 of the new race B is transferred to the winder 2. Thus it is possible to facilitate the change of races.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for changing types in a spinning winder.

[Conventional technology]

As the demand shifts from mass production of one product to production of a wide variety of products in small quantities,
A spinning winder that connects a spinning machine and a winder for the next process has appeared and is actually in operation. In other words, the bobbin after spinning is directly supplied to the winder side through a conveyance path, and the rewound and empty bobbin is discharged from the winder and returned to the spinning machine side by a conveyor, and the bobbin is conveyed in a closed loop. Ru.

In such systems, lot changes, ie, the types of yarn produced, occur relatively frequently. Conventionally, this type switching work is performed as follows.

In other words, when a predetermined amount of yarn is produced in a spinning frame, especially a ring spinning frame, the fully wound bobbin (hereinafter referred to as a real bobbin) on each spindle of the spinning frame will produce a continuous yarn between the bobbin and the draft bar. After the worker cuts the material, it is automatically transferred to a peg on a transport band placed along the spindle. The sliver remaining in the draft part is removed by the worker, and the feeding bobbin or the can containing the shino is replaced with the next type of shino to be produced, and the shino is pulled out from the shino bobbin and supplied to the draft part. be done. After the spun yarn is drawn out and the yarn end is wound around the empty bobbin on the spindle, normal spinning operation begins.

[Problem that the invention seeks to solve]

This kind of type switching operation is normally performed manually by an operator, and is an extremely complicated task, requiring a long time to prepare for type switching on a spinning machine made up of several hundred spindles. This causes a decrease in the operating efficiency of the spinning machine itself.

The present invention aims to solve the above problems.

[Means for solving problems]

The present invention involves a process of temporarily stopping the winding of the bobbin on the spinning spindle that is being wound after a command to change the product type, cutting the sliver connected to the draft part and the yarn feeding section, and A step of connecting the sliver with the sliver remaining in the draft part, a step of restarting the spindle and winding the new variety of yarn on the yarn layer of the previous variety on the short-time winding bobbin, and a step of connecting the sliver to the sliver remaining in the draft part; The process of doffing and the process of removing the yarn of the new variety wound on the previous variety prior to supplying the doffed fruit bobbin to the winder are performed in accordance with the above order. With this, the operator simply needs to replace the thread feeder, without having to remove the remaining sliver from the draft part or winding the thread end around the empty bobbin.
It is possible to change the type by performing the normal doffing operation.

[One example]

The present invention will be explained below with reference to the drawings.

Figure 2 shows an example of the layout of a spinning winder. A spinning machine (1) and a winder (2) are installed, and a real bobbin transport path (4) transports the real bobbin (3) produced by the spinning spinning 411 (1) to the winder (2), and the real bobbin is discharged from the winder. A closed loop is formed by an empty bobbin transport path (6) that returns the empty bobbin (5) to the spinning machine, and the real bobbins produced by the spinning machine are inserted into a tray (7) as shown in the fourth figure, for example. It is transported and supplied to each winding unit together with the tray. In the winder, the actual bobbin at the winding position is rewound, and the empty bobbin is unwound together with the tray, transported along the conveyance path (6), and arranged in parallel at a predetermined spindle pitch of the spinning machine. be. In addition, at the end of the real bobbin conveyance path (4) shown in FIG. 1, a yarn end outlet device (8) for preparing the yarn end of the real bobbin to be supplied to the winder in advance is disposed.

An example of the above-mentioned pick-out device is shown in FIG.

Note that although this embodiment shows an example that is applicable to a spinning bobbin in which punch winding is applied to the lower end, the present invention can also be applied to a bobbin having a top punch with some modifications.

The bobbin (3) after spinning is inserted into the tray (7) and is transferred along the conveyance path (4) in the direction of the arrow (9), and reaches the receiving position (A) of the pick-up device. t7
Tray receivers (10) fixed at regular pitch intervals
The bobbin (3a) received by the rotating plate (11)
With the intermittent rotation in the direction of the arrow (12) of 0), the bobbin (3) that has been successfully ejected passes through each processing station CB) (C) CD) (E) and reaches the dispensing station (F).
S) is conveyed toward the winder along the conveyance path (7) in the direction of the arrow (8).

The above-mentioned station CB) is equipped with a cutter device (1
4) is placed, and the bobbin (3C) is placed in the station (C).
) and the cutter (14), and a roller (15) is arranged to wind the yarn on the surface of the yarn layer.At the station (B), the bobbin (3b) is moved in the direction of unwinding the wound yarn. At station (16), it is rotated by a friction roller, and at station (C), it is rotated by a roller (15) in the winding direction (17).Furthermore, at station (D), the free end of the yarn is sucked and unraveled. A thread end suction and unraveling device (18) is arranged, for example consisting of a suction mouth (20) having a slit (19).In this position, the bobbin (3d) is threaded by a friction roller (21). Direction of unraveling (
16) undergoes rotation. Furthermore, the station (E) is provided with a thread end insertion mechanism (23) that cuts the thread pulled out from the bobbin into a certain length and inserts the thread end into the center hole (22) of the bobbin (3e). .

As shown in Figure 4, the bobbin tray (7) in this embodiment has a base (25) and a bobbin insertion peg (26) integrally formed on a disc-shaped base (24). A hollow part is formed at the bottom, and an air passage hole (27) is bored in the peg (26).By applying a suction air flow inside the tray (7), the air passage hole is opened. A suction force is applied to the bobbin center hole (22) through (27).

Tray with the bobbin inserted that has reached the receiving position (A) (
7A) passes through processing stations (B) to (E) by intermittent rotation of the rotary plate (10) in the direction of arrow (12) every 45 degrees;
When reaching the unloading position (F), bobbins that have been successfully tapped are discharged to the conveyance path (4a), but bobbins that have failed to be tapped are blocked by the movable guide (28) and are subsequently transferred to the bypass (G). )(H) and return to the pick-up processing acceptance position (A
), and the same operation as above is repeated.

That is, the processing station (E) is provided with a sensor for outputting the M output yarn end, and when the sensor detects that there is no yarn, the movable guide (28) shown in FIG. 3 is positioned by a rotary solenoid or the like. This prevents tray (7F) from being dispensed when it reaches position (F).

Furthermore, a mixed yarn removal device (30) for removing yarns of different types as shown in the fourth figure is arranged in the bypasses (G) and (H).

That is, in the station (G), a suction pipe (31) is installed in the center hole of the bobbin that has reached the position to suction and unravel the yarn end of the mixed yarn hanging down from the top end of the bobbin. A slit (32) is formed in the pipe extending above the station (H). The opening of the pipe (31) is located on the center line of the bobbin, and the thread can be unraveled by suction force.

In addition, (33) in Fig. 4 is a nozzle that injects compressed air toward the inside of the pipe (31).
The thread end pipe (31) hanging from the top of the bobbin
It assists in suction inward.

Furthermore, a cutter (34) is installed above the station (H) to cut the thread (Yl) that passes between the station (H) and the slit (32) of the suction pipe (31).
The cutter (34) consists of a regular fixed blade and a movable blade, and the movable blade is powered by a motor or rotary solenoid (35).
) and other drive sources are commonly used.

Furthermore, in FIG. 4, the suction start and stop shutter (36) of the suction pipe (31) of the station (G) is -
It is provided so as to be able to turn around a shaft (37). The shutter (36) has a suction duct (38) and a pipe (3
9), and a shutter (36) is opened and closed by a drive source (not shown) via a lever (40), a rond (41), etc. The pipes (31) and (39) are connected at a joint (42).

The type switching operation of the spinning winder having the above-mentioned pick-out device will be described below. In the following explanation, a sliver is used as a yarn feeder, but it is of course possible to use a Shinonaki bobbin.

In Figure 1, a set amount of yarn (type a) is produced on the spinning machine.
When the production of the i75 is about to be completed, the product failure signal is activated.
The warning lamp is outputted from the device and is installed, for example, on the spinning machine stand, and the spinning spindle, which is just before full winding, is temporarily stopped. That is, in this state, as shown in Fig. 1, the sliver of type A (SA) drawn from the sliver can (50) of type A is connected to the draft part (51), and furthermore, the draft part (51) and the spindle (52) are connected to each other. ) A thread (Y2) is continuous between the bobbins (3) on the top. In this state, the worker can move the draft part (51
) and the sliver can (50), the sliver can (50) is discharged, and the sliver can (53) containing the sliver of the next type (b) is cut.
) and replace the sliver end (
SBI) and the draft part (51) at the cut position above
The sliver end (SAI) of type a is continued.

In this state, the spindle (52) and draft part (51) are restarted. That is, at least the sliver of type a (
A certain length of the sliver (SR) of the SΔ) and m<b varieties is wound onto the bobbin (3) as a thread, and the final production of the a variety is completed by winding the bobbin (3) as thread.Next, the normal doffing operation begins. The empty bobbin (54) that is waiting in advance is exchanged with the real bobbin (3) on the spindle (52), and yarn of type B has already been produced for the empty bobbin placed on the spindle. Therefore, when normal winding is resumed, yarn of type B will be wound onto a new empty bobbin without contamination with yarn of type B.

On the other hand, in the final winding portion of the doffed fruit bobbin, several meters of yarn of type B are wound, and the bobbin having the yarn of the different type is removed from the thread by the pick-up device (8). It is.

FIG. 5 schematically shows only the stations (A) to (H) of the leading device (8), and FIG. 6 shows the state of the yarn end.
In Figures A to 6D, the actual bobbin transferred from the spinning machine side on the conveyance path (4) is shown in Figure 6A, as shown in Figure 6A, the final part of the yarn layer (Ya) of type a, that is, the traverse movement of the ring of the spinning machine. Although it differs depending on the type, the yarn of type b (Yb) is wound on the part, and the punch winding (13) is performed.

The length of the subsection (Yb) of the bobbin (3) varies depending on the settings such as yarn type, count, winding time, etc., but is approximately 10 to 20 m.
It is. The bobbin (3) is conveyed integrally with the tray (7), and is transported to the receiving station (A) of the feeder (8).
Then, the bobbin at station (E) is transferred along stations (A) to (E) and subjected to the normal threading process, and the bobbin at station (E) has the yarn end (Ybl) of the part type (type b) as shown in Fig. 6B.
is inserted into the center hole of the bobbin. The bobbin (3 m) is not discharged even when it reaches station (F), and is transferred again to stations (A) to (E) via stations (G) and (H). That is, the sixth
When the bobbin (3m) in figure B reaches station (G),
The part removal device (30) shown in FIG. 4 operates, and the part part (
The thread of Yb) is suctioned and unraveled, and after the set time has elapsed, the bobbin (3 m) of station (C) is moved to station (H).
The thread (Yl) between the bobbin (3n) and the pipe (31) at that position is introduced into the cutter (34) and cut. That is, at the station (H), the bobbin (3n) shown in FIG. 6C is obtained, the part (Yb) is removed, and the bobbin is made up of only the yarn layer of type a, with the yarn end (Yal) hanging down on the surface of the yarn layer.

Furthermore, the bobbin (3n) is connected to the station (A).
~(E), and is subjected to the same unwinding process as a normal bobbin, and at station (E), the bobbin (3S) shown in Fig. 6D is produced.
The yarn end (Ya2) is in the specified position with only the yarn layer of the next type A,
That is, in this embodiment, the bobbin is inserted into the bobbin center hole and suspended, and is delivered from the station (F) to the bobbin conveyance path (4a) on the winder side.

In this way, the yarn of a different type wound around the final doffing bobbin of type A is removed and the bobbin is supplied to the winder as a bobbin having only the yarn layer of type A.

Note that bobbins that are doffed other than when changing the product type are used as stay shores (A) to (E) in the above-mentioned feeder (8).
After that, it is paid out from station (F).

Therefore, it is necessary to control the movable guide (28) at the station (F) using the normal bobbin and the partial bobbin. Then, on the tray containing the bobbin at the time of type switching, write on the magnetic member that it is a partial bobbin and that each bobbin is a different bobbin, and place a reading device at station (F). By keeping the bobbin in place, it is possible to distinguish it from a normal bobbin.
The possible guide member (28) can be controlled.

In addition, it is necessary to determine whether or not the bobbin has passed through stations (G) and (H) among the secondary bobbins. In this case, the reading device at station (F) must read the same identification symbol twice. Station CF when read
), and the bobbin (3 m) shown in Figures 6B and 6D is controlled to be transferred to stations (G) and (H) without being discharged during the first reading.
33) can be identified.

〔Effect of the invention〕

As described above, the present invention greatly simplifies the work on the spinning machine when changing types, reduces the time required to change types, and greatly increases the operating efficiency of the spinning machine. .

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a spinning machine, Fig. 2 is a plan view showing an example of the layout of a spinning winder, Fig. 3 is a schematic perspective view showing an example of a spinning winder, and Fig. 4 is a schematic perspective view showing an example of a spinning winder. A front view showing an example of the parts removing device installed at stations (G) and (H) of the device, FIG. 5 is a schematic diagram showing the stations of the above-mentioned pick-out device, and FIGS. 6A to 6B show the parts removed when changing the product type. It is a figure which shows the process of removing the part system of a part system bobbin. (1)... Spinning machine, (2) -... Winder, (3)
---Real bobbin, (30) ---Parts removal device, (5
1) - Draft part, (52) Spindle, (SA) - A sliver, (SB) - B sliver. Date of July 21, 1988 Name of the invention Method for changing varieties in a spinning winder 3, relationship with the case of the person making the amendment Patent applicant Kyotoshi Minamiokuki Fushoin Minami Ochi Aichou Punch Address 8601 Minami-ku, Kyoto City Kisshoin Minami Ochiai-cho 3 Kyoutoshi Fushimiku Takedamukaishirocho Punch contact information 6612 136 Taketa Mukoyo-cho, Fushimi-ku, Kyoto Murada Kikai Chikarabushiki Kaisha Toyo Chikara Murata Machinery Co., Ltd.
Patent Division ffi 075 (672) 8222 4, Date of amendment order 6, Contents of amendment 6-1 Brief explanation of drawings in the specification, page 17, line 7, "~Figure 6B" is changed from 1 to 6. The 6D diagram is corrected. that's all

Claims (1)

[Claims] A process of stopping the winding of the bobbin on the spinning spindle that is being wound after a command to change the product type, and cutting the sliver connected to the draft part and yarn feeding section of the spinning machine, The process of joining the sliver on the yarn feeding side and the sliver remaining in the draft part, the process of restarting the spindle and winding the new type of yarn on the yarn layer of the previous type on the winding bobbin, and the process of connecting the sliver on the yarn feeding side of Prior to supplying the doffed fruit bobbin to the winder, the step of removing the thread of the new variety wound on the previous variety is performed in accordance with the above order. Method for changing varieties in spinning winders.